1. Department of Pain Rehabilitation , Skåne University Hospital , Lund , Sweden
2. Department of Psychology , Lund University , Lund , Sweden
3. Department of Orofacial Pain and Jaw Function , Malmö University , Malmö , Sweden
4. Department of Clinical Sciences, Otorhinolaryngology , Skåne University Hospital, Lund University , Lund , Sweden
5. Department of Health Sciences , Lund University , Lund , Sweden